baber/WOPTO huggingface dataset:
Patent CA-1303061-C (CA)
Title: Separation of citric acid from fermentation broth with a non-zeolite polymeric adsorbent
Inventor: KULPRATHIPANJA SANTI
IPC: C07C59/265
Filed: 1988-01-18
Granted: 1992-06-09
Abstract: "SEPARATION OF CITRIC ACID FROM FERMENTATION BROTH WITH A         NON-ZEOLlTE POLYMERIC ADSORBENT' ABSTRACT   Citric acid is separated from a fermentation broth by using a water-insoluble polymeric adsorbent selected from the group consisting of a neutral, crosslinked polystyrene polymer, a nonionic hydrophobic polyacrylic polyacrylicester polymer, a weakly basic anionic exchange resin possessing tertiary amine or pyridine functional groups, and a strongly basic anionic exchange resin possessing quaternary amine functional groups and mixtures thereof and a desorbent comprising water or an inorganic acid or a ketone or mixtures thereof. The pH of the feed is preferentially adjusted and maintained below the first ionization constant (pKal) of citric acid in order to maintain selectivity.
Patent CA-1305225-C (CA)
Title: Transformer with wire lead isolation slots
Inventor: BILLINGS ROBERT L
IPC: H01F19/00
Filed: 1988-01-27
Granted: 1992-07-14
Abstract: TRANSFORMER WITH WIRE LEAD ISOLATION SLOTS            Abstract A transformer (10) for mounting on a printed wire board includes a bobbin (14) held between two ferrite core slabs (12). The bobbin is wound with a primary winding (28) having a secondary winding (32) wound over it. The wire leads (30) of the primary winding lie in slots (26) in one of the flanges (20) of the bobbin which extend to terminals (24) of a terminal base (22) integral with the flange to isolate them from the secondary windings and leads (34).
Patent CA-1279965-C (CA)
Title: Die for extrusion of blown plastic film
Inventor: GATES PETER C
IPC: B29C49/48
Filed: 1988-02-16
Granted: 1991-02-12
Abstract: Abstract of the Disclosure DIE FOR EXTRUSION OF BLOWN PLASTIC FILM            The invention relates to the kind of die which has many helical grooves (40) spiralling around a mandrel, and to a new way of feeding the liquid resin from the main supply duct (48) to the grooves.  Instead of the usual one groove to one conduit relationship, in the invention the channels (41) to the grooves are intercalated with the conduits (47).          Each groove is fed via feed-channels (45,46) from two of the conduits, and each conduit feeds two of the grooves.  The result is that the cooler liquid resin from the walls of the main duct is constrained to move to the centre of the stream in the groove.  The arrangement leads to an improvement in the homogeneity of the resulting film.
Patent CA-1292774-C (CA)
Title: Microwave moisture measurement using two microwave signals of different frequency and phase shift determination
Inventor: WALKER CHARLES W E
IPC: G01R25/04
Filed: 1988-02-16
Granted: 1991-12-03
Abstract: MICROWAVE MOISTURE MEASUREMENT USING TWO MICROWAVE SIGNALS OF            DIFFERENT FREQUENCY AND PHASE SHIFT DETERMINATION       ABSTRACT OF THE DISCLOSURE        A microwave measurement apparatus is disclosed for measuring an unknown property of a test material, such as moisture content, by transmitting microwave beams through such material so that a portion of the beam energy is absorbed by the moisture or other property.  Two microwave input signals of different frequencies are used to form the microwave beams and the corresponding attenuated received signals are compared in order to compensate for the presence of a component in the test material, such as foundry molding sand, which is not being measured but which also absorbs microwave beam energy.  To determine the density of the test material in the event of changes in such density, one of the microwave signals is used to measure the phase shift of the corresponding received signal and produce a phase shift output signal.  A single microwave antenna having two microwave signal connections is employed to transmit the two microwave beams of different frequency without interference and another antenna of the same type receives such two beams to produce the two attenuated received signals.  The two attenuated received signals of different frequency and the phase shift output signal are combined in a signal processor to produce a percent moisture content signal.
Patent CA-1296442-C (CA)
Title: Polysaccharide graft polymers containing acetal groups and their conversion to aldehyde groups
Inventor: TSAI JOHN J
IPC: C08F251/00
Filed: 1988-02-22
Granted: 1992-02-25
Abstract: ABSTRACT     Polysaccharide graft polymers which comprise an acetal-containing or aldehyde-containing homopolymer or copolymer grafted to a polysaccharide base, represented as Sacch-g-(M')x  or  Sacch-g-(M')z and Sacch-g-(M")x or Sacch-g-(M)y-(M")z' have been prepared.  M' and M" respectively represent repeating units derived from one or more ethylenically or allylically unsaturated monomers containing an acetal group or aldehyde group; M represents a repeating unit derived from one or more ethylenically or allylically unsaturated monamers other than the acetal-containing or aldehyde-containing monomer; x is at least 2 and y and z are at least l; A and A' are independently a lower alkyl or A and A' together form at least a 5-membered cyclic acetal; with the proviso that the graft polymer contain no -?-NH-?- groups when the aldehyde groups are present.  The aldehyde-containing graft polymers are useful for imparting wet strength to paper.  Various novel acetal- and aldehyde-containing monomers have also been prepared; they can be graft polymerized to polysaccharide substrates or polymerized by conventional emulsion polymerization techniques with vinyl polymerizable monamers.
Patent CA-1329471-C (CA)
Title: Device for pre-tautening of the annular stator core laminations of a large electric generator
Inventor: PANARESE ORLANDO
IPC: H02K15/02
Filed: 1988-02-24
Granted: 1994-05-17
Abstract: ABSTRACT          This invention refers to a device for the  pretautening of the stator core laminations (20) of a large electric generator.          A suitable number of anchoring devices  (40)  according to  the  invention is positioned between the shell (10) and the  stator  core  laminations  (20),  evenly  dis-tributed in height and around the circumference.    Each  anchoring device (40) by means of which said pre-tautening is achieved,  has a baseplate (41) secured to the shell (10)  for example by welding,  and a bracket (51) equipped with tong-like  arms  (52)  by  means  of which  it is able to grip the fins (32) made on tension rod keys (30) having a dovetail-shaped rib (31) capable of being inserted into a corresponding seat (21) formed in the extrados of the stator core laminations (20).          Pre-tautening of the stator pack is achieved  by  exer-cising  centrifugal  traction  on the brackets (51) and securing them by means of screws (57) arranged  between the baseplate (41) and the bracket (51) (figure 3).
Patent CA-1323833-C (CA)
Inventor: JOSHI YATINDRA M
IPC: A61K9/22
Filed: 1988-02-26
Granted: 1993-11-02
Abstract: Abstract NEW PHARMACEUTICAL COMPOSITIONS IN THE FORM OF BEADLETS AND METHOD        A pharmaceutical composition is provided which is in the form of a plurality of beadlets, adapted to be filled into pharmaceutical hard shell capsules, or compressed into tablets, which beadlets are formed of a pharmaceutical such as an ACE inhibitor, for example, captopril, a beta-blocker such as nadolol, propranolol or atenolol, a calcium channel blocker such as diltiazem or nifedipine or other pharmaceuticals including combinations thereof, binder such as microcrystalline cellulose, and at least 5% by weight of an acid processing aid, such as citric acid, which imparts plasticity to the wet mass needed for efficient extrusion and spheronization. A method for forming beadlets is also provided which includes the steps of extruding a composition as described above, and subjecting the resulting extrudate to a spheronization step wherein an acid processing aid such as citric acid is employed to improve processing and form improved beadlets.
Patent CA-1290373-C (CA)
Title: Rating plug enclosure for molded case circuit breakers
Inventor: MORRIS ROBERT A
IPC: H01H73/00
Filed: 1988-03-24
Granted: 1991-10-08
Abstract: RATING PLUG ENCLOSURE FOR MOLDED CASE             CIRCUIT BREAKERS               ABSTRACT OF THE DISCLOSURE      A molded plastic rating plug enclosure houses the molded case circuit breaker rating plug printed circuit board.  The rating plug enclosure is inserted within the circuit breaker cover and is adapted for removal from the circuit breaker cover by means of a special extrac-tor tool.  Access means for connecting a test jack with the circuit breaker trip unit printed circuit board and visual access means for an indicating diode are formed within the cover of the rating plug enclosure.
Patent CA-1297476-C (CA)
Title: Starch and products produced therefrom
Inventor: FRIEDMAN ROBERT B
IPC: A23L21/10
Filed: 1988-03-28
Granted: 1992-03-17
Abstract: NOVEL STARCH AND PRODUCTS PRODUCED THEREFROM                 Abstract of the Disclosure A substantially pure starch extracted from a starch bearing plant having a dull waxy genotype is disclosed.          Maize is the preferred plant.  The starch exhibits properties similar to chemically modified starches.  A sol and foodstuff containing the starch are also disclosed.
Patent CA-1286977-C (CA)
Title: Procede et buse d'oxycoupage
Inventor: ARNOUT MICHEL
IPC: B23K7/00
Filed: 1988-03-31
Granted: 1991-07-30
Abstract: L'invention concerne l'oxycoupage. Un dispositif d'oxycoupage comporte deux jets d'oxygène de coupe véhiculés par deux conduits avec, entre eux, un conduit pour flamme carburante assurant une reprise de chauffe en profondeur dans la saignée brute de coupe qui a été faite par le premier jet d'oxygène de coupe (via le premier des deux conduits) et qui est finie, par le second jet d'oxygène de coupe (via le deuxième des deux conduits). Application ou coupage de pièces de fortes épaisseurs, telles les brames.
Patent CA-1288154-C (CA)
Title: Signal transfer arrangement
Inventor: FOSTER EUGENE W
IPC: H04M3/56
Filed: 1988-04-11
Granted: 1991-08-27
Abstract: SIGNAL TRANSFER ARRANGEMENT     Abstract A telecommunicaton system providing centrex services, and having an attendant position serving users from diverse customer locations. Users at a satellite customer location connected to one exchange and employing ISDN terminals are provided with access to an attendant position at a main customer location connected to another exchange. ISDN messages from users at the satellite location requesting attendant services are recognized at the exchange associated with the satellite location and transmitted as analog flash signals via an analog signaling trunk to the exchange to which the attendant is connected. The exchange receiving the flash signals interpret the signals as requests for attendant services and provides the necessary connections to the attendant's position.
Patent CA-1313020-C (CA)
Title: Treatment of materials
Inventor: SMITH COLIN P
IPC: A23L3/3409
Filed: 1988-05-31
Granted: 1993-01-26
Abstract: RENTOKIL LIMITED                      Abstract "Treatment of Materials"      A method and apparatus for treating a material with gas or vapour, especially a fumigant, comprises a sealable enclosure device, a pump which may have an inlet for the agent and a heat reservoir, and a long flexible hose to allow the enclosure to be evacuated after treatment and the effluent discharged outside the premises where the material is treated.
Patent CA-1305907-C (CA)
Inventor: BOETTGER WOLFGANG
IPC: B29C70/08
Filed: 1988-07-15
Granted: 1992-08-04
Abstract: ABSTRACT           There is described a structure and method for its manufacture which structure is based on a multi-ply fabric having filling threads extending between the plies thereof, wherein the multi-ply fabric is composed of an industrial yarn such as aramide fiber, carbon fiber, ceramic fiber or fiberglass and wherein the filling thread, incorporated in the form of weft thread, is a polypropylene or polyamide thread group and the multi-ply fabric is impregnated and the resin therein cured.  The filling thread may also be a carbon fiber thread group.  In the method, a resin-impregnated multi-ply fabric is placed in a mold for pressing it and for curing, and in order to ensure different thickness of the molding, shims are placed in the mold.
Patent CA-1327223-C (CA)
Inventor: BROWN ROBERT A
IPC: H01H39/00
Filed: 1988-08-11
Granted: 1994-02-22
Abstract: Abstract of the Invention A  pivot  mechanism  for  drop-out  of  an electronic sectionalizer tube from an upper contact of mounting structure is arranged so that substan-tially the entire force released by an actuator fired by a sectionalizer logic circuit immediately causes the tube to drop away and disengage the upper contact.  The actuator is mounted on a lower portion of the tube and has a pin that strikes a trunnion pivotally interconnecting a lower contact of the mounting structure and a lower portion of the tube, and the pin of the actuator strikes the trunnion at a location between the pivotal connections of the trunnion  so  that  immediate,  downwardly  directed motion of the sectionalizer tube away from the upper contact is assured.   The pivot mechanism reliably ensures successful drop-out of the tube regardless of adverse environmental conditions and with minimal reliance upon a spring or the effects of gravity.
Patent CA-1307510-C (CA)
Title: Universal circular enclosure for standard strip fluorescent fixtures
Inventor: HARTSHORN GARY
IPC: F21V21/00
Filed: 1988-09-06
Granted: 1992-09-15
Abstract: A fluorescent lighting enclosure system (11) is disclosed which is designed to receive standard fluorescent strip lights (24) of one or multiple lamp configuration and to support and enclose the fixtures in a readily adaptable form. The enclosure (11) is in the form of continuous extrusions having internal tracks (23, 33, 34) extending longitudinally along the full length of the extrusion. A novel spline (25, 27) is designed to fit in the tracks and act as a mount for the enclosure itself and for the fluorescent strips as well as to join the ends of enclosure sections and hold an end plate (18) in place. The enclosure (11) may be mounted with its light emitting opening directed in any direction including inverted. Perimeter lighting, grid and handrail lighting are all possible employing this invention with virtual 100% linear coverage using standard fluorescent fixtures 24. Various shapes of the enclosure may be used such as circular (11), ovoid (130), rectangular or square (140) or handrail shaped (150).
Patent CA-1333324-C (CA)
Inventor: GIROUX PIERRE
IPC: G21F9/02
Filed: 1988-09-08
Granted: 1994-12-06
Abstract: L'invention a pour objet un procédé et une installation de traitement de déchets organiques solides contaminés par du tritium. On met les déchets en contact avec de la vapeur d'eau dans l'enceinte pour extraire dans la vapeur d'eau le tritium et l'on condense ensuite la vapeur d'eau pour récupérer le tritium des déchets sous forme d'eau tritiée.
Patent CA-1329801-C (CA)
Title: Modified silica based catalyst
Inventor: BUEHLER CHARLES K
IPC: C08F4/02
Filed: 1988-09-20
Granted: 1994-05-24
Abstract: ABSTRACT This  invention  provides  a  silica supported  magnesium-containing  catalytic precursor or reduced SiOH content  for reaction with a titanium halide to form a catalyst for the production of a stereospecific alpha olefin polymer characterized in that prior to reacting with titanium halide the magnesium-containing silica is reacted with at least one titanium compound having the formula Ti(R)nXm or Ti(OR)nXm where R is aryl, alkyl, alkaryl or mixtures thereof; X is halogen, n is an integer of 1 to 4; and m is 0 or an integer of 1 to 3 with the proviso that the sum of n and m is 4.
Patent CA-1304652-C (CA)
Title: Multi-viscosity metering valve
Inventor: ROBINSON EDGAR C
IPC: F16K3/26
Filed: 1988-11-23
Granted: 1992-07-07
Abstract: ABSTRACT          A multi-viscosity fuel metering valve comprises a metering stem and a metering stem guide. The metering stem is rotatable relative to the metering stem guide. A port is located in the metering stem guide and a plurality of orifices, each having different dimensions, are positioned in the metering stem. The port in the metering stem guide may be moved relative to each of the orifices and each of the orifices may be individually positioned adjacent the port. The selection of an orifice for a fuel having a particular viscosity allows the use of different fuels with a heating apparatus such as a burner.
Patent CA-1322660-C (CA)
Inventor: SLUTZ DAVID E
IPC: C04B37/02
Filed: 1989-02-02
Granted: 1993-10-05
Abstract: BONDING OF THERMALLY-STABLE ABRASIVE COMPACTS TO                 CARBIDE SUPPORTS                   ABSTRACT OF THE DISCLOSURE Disclosed is a method for bonding thermally-stable polycrystalline diamond or CBN compacts to carbide supports wherein the carbide support Is placed in thermal contact with a heat sink and the thermally-stable compact is placed in thermal contact with n heat source during the brazing operation.
Patent CA-1331228-C (CA)
Inventor: CHAO PHILIP C J
IPC: H04L29/06
Filed: 1989-03-15
Granted: 1994-08-02
Abstract: Abstract A synchronous protocol data formatter handles all 24-32 channels of a so-called primary rate version of a digital multiplexed interface or ISDN Primary Rate Interface for a communication system. The formatter relieves the host computer of the local area network of some highly specialized tasks, and, at thesame time, provides the following augmented capabilities, which exceed those required by the C.C.I.T.T. standard, I431: 1. dynamic channel bandwidth alloction can assign arbitrary (even non-adjacent) time slots to create a super channel;           2. a circular interrupt-queue in a shared memory enables the formatter and the host computer of the local area network to interact efficiently in updating and responding to changing conditions; and 3. cyclical redundancy codes can be used on a more flexible basis than heretofore, e.g., can be generated upon only address and control fields fordigitized voice signals, or, in a relay mode, can substitute an existing cyclical redundancy code to guard against memory errors.
Patent CA-1327072-C (CA)
Inventor: YANCHAK DENNIS A
IPC: G01V1/36
Filed: 1989-04-20
Granted: 1994-02-15
Abstract: ABSTRACT A method is described for enhancing seismic data and, more particularly, for attenuating multiple reflection events in seismic data.  Seismic data are sorted into common endpoint gathers, and selected multiple reflection events are corrected for time delays associated with the reflection of the seismic energy from common reflecting interfaces and aligned.  The aligned multiple reflection events are attenuated and the resulting enhanced seismic data can then be inverse time-delay cor-rected for subsequent processing, including repetitions of the aligning and attenuation steps to suppress additional multiple reflection events in the seismic data.
Patent CA-1308792-C (CA)
Title: Acceleration and deceleration sensor
Inventor: BACHMANN ROLF
IPC: H01H35/14
Filed: 1989-05-10
Granted: 1992-10-13
Abstract: ABSTRACT OF THE DISCLOSURE      An acceleration and deceleration sensor includes a housing; first and second elongate cavities formed in the housing and extending parallel to one another, a reed switch disposed in the first cavity; a first elongate permanent magnet immovably secured in the second cavity; and a second elongate permanent magnet longitudinally slidably received in the second cavity and arranged end-to-end relative to the first magnet.  The reed switch and the second magnet are ar-ranged with respect to one another such that upon movement of the second magnet the magnetic field thereof actuates the reed switch.  The sensor further has a lid cooperating with the first cavity and has a closed and an open position.  In the closed position the lid covers the first cavity and is supported on the housing and in the open position the first cavity is exposed to environment external to the housing.          The lid is arranged for movement from the closed position to the open position in a direction transverse to the length dimension of the elongate first cavity.  There is further provided an adjustment screw closing an end of the second cavity.
Patent CA-1301618-C (CA)
Title: Low amplitude wave-board
Inventor: BACH LARS
IPC: B27N3/20
Filed: 1989-06-07
Granted: 1992-05-26
Abstract: "LOW AMPLITUDE WAVE-BOARD"     ABSTRACT OF THE DISCLOSURE         A low amplitude waveboard panel having improved bending strength and bending stiffness properties is provided.  More specifically, the amplitude of the waves is substantially equal to, or less than the thickness of said board.  Preferably, the wave amplitude ranges from between 1/8" to about 1".
Patent CA-1325956-C (CA)
Inventor: JORGENSEN GEERT
IPC: G05G5/05
Filed: 1989-07-10
Granted: 1994-01-11
Abstract: Abstract The invention relates to a setting apparatus comprising a housing (1), an operating grip (2) pivotable on the housing about a pivot axis (10), a lever arm, a centering device and a signal changing device (4, 5). In this setting apparatus, the operating grip is to return to its neutral position without external force effects, the neutral position being adjustable. This is solved in that the centering device comprises a pressure face (8) on either the housing (1) or the operating grip (2), which face under the force of a spring (6) acting along the long-itudinal axis of the lever arm (3), is pressed against an abutment (7) on either the operating grip (2) or housing (1), respectively, the abutment (7) and/or pressure face (8) being adjustable with respect to the integers (1, 2) on which they are provided.   Fig. 1
Patent CA-1337319-C (CA)
Title: Apparatus and method for disentanglement of fish  hooks from a main line
Inventor: PACE DAN R
IPC: A01K91/18
Filed: 1989-07-17
Granted: 1995-10-17
Abstract: An apparatus for disentangling snood-line fish hooks from the main line comprising a channel, means to pull the main line through the channel, hook orientation means, a first and second hook deflection means and a track for orderly stacking of the fish hooks.   The main line is drawn along the channel and entangled   hooks   are   deflected   resulting   in   their disentanglement from the main line.  The channel is comprised of two segments.   The  first segment,  which harbours the orientation means, has a spring loaded, releasable upper plate which allows passage of smaller knots but which releases in the event of excessive strain.   The second segment, which harbours the first hook deflection means, is expandable and is similarly adapted to expose the channel  in the event of excessive strain.
Patent CA-1328836-C (CA)
Inventor: GIBBONS CHARLES E
IPC: B32B27/00
Filed: 1989-07-17
Granted: 1994-04-26
Abstract: ABSTRACT The present invention relates to an improved container for food and non-food products.  The container utilizes a novel paperboard barrier laminate structure which maintains an isolated gas environment in the container.  The laminate makes use of high strength, heat-resistant and caulking polymer layers which prevent pinholes, cuts, or cracking of the barrier layers during blank conversion, package formation, and package distribution.  In addition, the novel polymer resin layers act to caulk the seam  and channels present in the carton providing a sealed leak free container-
Patent CA-1324440-C (CA)
Inventor: RAMASWAMY SESHADRI
IPC: G11B5/187
Filed: 1989-08-16
Granted: 1993-11-16
Abstract: Abstract A recording head having first and second poles with first and second pole tips separated by a gap, a cross-section of one of the pole tips including two regions, one larger than the other, one of the regions being adjacent to the gap.  A cross-section of a second pole tip may include two regions, one larger than the other, one of the regions being adjacent to the gap. This pole tip design, where the width of the poles along their outer edges are considerably larger or considerably smaller compared to their width at the gap, leads to minimal undershoots in the readback pulses of thin film heads.